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Unit:mm

Hexalobular Socket High Countersunk Head Screws

GB /T 2673.2 - 2020

Display drawing:

国标GB /T2673.2 - 2020 GB2673.2 2673.2GB Hexalobular Socket High Countersunk Head Screws

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Nominal Length L Tips:seclect Nominal Length L and get Thread length.

Thread Size
d

M3

M4

M5

M6

M8

M10

P		Pitch
d_k		Theoretical	max
		Actual	max
			min
d_s		max
		min
k		max
Socket No.
A		Ref.
t		max
		min
r		min

0.5	0.7	0.8	1	1.25	1.5
7.4	10.02	12	14.44	19.38	23
6.57	9.02	10.9	13.2	17.9	21.3
6.17	8.52	10.27	12.46	17.09	20.49
3	4	5	6	8	10
2.86	3.82	4.82	5.82	7.78	9.78
2.2	3.01	3.5	4.22	5.69	6.5
10	20	25	30	45	50
2.8	3.95	4.5	5.6	7.93	8.95
1.18	1.69	1.89	2.22	2.99	3.3
0.92	1.3	1.5	1.83	2.6	2.91
0.10	0.20	0.20	0.25	0.40	0.40

Length of Thread b

-

-

-

-

-

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Similar Standards

1		[ISO] ISO 14581 - 2013	Fasteners — Hexalobular Socket Countersunk Flat Head Screws View Suppliers
2		[GB] GB /T 2673.1 - 2018	Hexalobular Socket Countersunk Flat Head Screws View Suppliers
3		[GB] GB 2673 - 1986	Hexagon lobular socket countersunk head screws View Suppliers
4		[GB] GB /T 2673 - 2007	Hexalobular Lobular Socket Countersunk Head Screws View Suppliers
5		[ASME] ASME B 18.6.3 (T2-VI) - 2013	82° Hexalobular Socket Countersunk Flat Head Screws
6		[ISO] ISO 14582 - 2013	Hexalobular Socket Countersunk Head Screws, High Head
7		[NF] NF E 25-107 - 2007	Screws With Six Lobes Recessed Countersunk Head - Symbol FX
8		[ASTM] ASTM 18.3 (Table 8-III) - 2012	Hexagon Socket Flat Countersunk Head Cap